The Fingerprint Recognition Module offers advanced fingerprint processing capabilities, including fingerprint registration and matching processes. It supports both 1:1 matching and 1:N search modes. With a compact design and comprehensive specifications, it's suitable for various security applications.

 

Features:

• Profile storage capacity of 256 bytes
• Template file capacity of 512 bytes
• Operates on DC 5V power supply
• Low operating current requirement (<120mA)
• Peak current consumption is less than 130mA
• Fingerprint image input time of less than 0.5 seconds
• Window area for fingerprint scanning is 18.5 mm x 14.6 mm
• Supports both 1:1 matching mode and 1:N search method
• Able to store up to 200 fingerprint pieces
• Offers five security levels, with a default setting of level 3
• False Acceptance Rate (FAR) is less than 0.001% at security level 3
• False Rejection Rate (FRR) is less than 1.0% at security level 3
• Average search time of less than 1.0 seconds (1:500)
• Resolution of 500ppi for accurate fingerprint scanning
• Host computer interface via UART (TTL logic level)
• Adjustable communication baud rate (UART) from 9600bps to 57600bps

 

Specifications:

• Wide operating temperature range from -25°C to +55°C
• Relative humidity range from 40% RH to 85% RH (no condensation)
• Extensive storage temperature range from -40°C to +85°C
• Compact dimensions for various module components:
  • Optical module (C3) dimensions: 47.65mm x 20.50mm x 21.20mm
  • Capacitive module dimensions: Main control board: 35mm x 28mm x 7mm
  • Sensor dimensions: 33.4mm x 20.4mm
  • Scratch-type module dimensions: Main control board: 35mm x 28mm x 7mm, Sensor board: 24mm x 20mm x 5mm

 

 

Pinout:

Num.	Pin Description
1	Finger detection power + - This pin provides power in the range of 3.6-5V for finger detection.
2	Finger detection signal output - This pin outputs the finger detection signal, with the standard output being active high.
3	Power supply + - This pin is the positive terminal of the power supply, providing +5V power.
4	Transmit (TX) - This pin is used for transmitting data (TX) to another device.
5	Receive (RX) - This pin is used for receiving data (RX) from another device.
6	Power supply - - This pin is the negative terminal of the power supply. It is the ground (GND) connection.

 

How the Module Works:

• The module processes fingerprint data through registration and matching phases. During registration, fingerprint images are captured and stored as templates. In matching, the module compares captured fingerprint images with stored templates to authenticate users. The result is provided as a pass or fail indication.
• The module interfaces via a serial communication interface and can be directly connected to a 3.3V or 5V microcontroller. The data transmission pin (TX) of the module (Pin 4) should be connected to the data receiver (RXD) pin of the host microcontroller. Similarly, the data receiving pin (RX) of the module (Pin 5) should be connected to the data transmission (TXD) pin of the microcontroller.
• For communication with a host computer operating at RS-232 level (e.g., PC), a level-shifting circuit (e.g., MAX232 circuit) needs to be added between the module and the host computer.
• Serial Protocol: The module utilizes half-duplex asynchronous serial communication. By default, the baud rate is set to 57600bps and can be adjusted using commands within the range of 9600 to 115200bps. The transmitted frame format consists of 10 bits, including a start bit, 8 data bits (LSB first), and a stop bit, without parity.
• Power-Up Delay Time: upon power-up, the module requires approximately 200ms to initialize. During this initialization period, the module is unable to respond to host commands.

 

Package Includes:

• 1 x Fingerprint Recognition Module with cable